We have revealed the Qur'an to you gradually; 23 Therefore wait patiently for the command of your Lord, and obey not from among them a sinner or an ungrateful one. 24 And remember thou the name of thy Lord in the morning and in the evening. 25 And prostrate for Him in a part of the night, and proclaim His purity into the long night. 26 Lo! these love fleeting life, and put behind them (the remembrance of) a grievous day. 27 [They will not admit to themselves that] it We who have created them and strengthened their make - and [that] if it be Our will We can replace them entirely with others of their kind. 28 This is a reminder. Let whoever wishes, take the right path to his Lord. 29 But you will not unless God wills; surely God is ever All-knowing, All-wise. 30 He admits to His Mercy whomsoever He pleases. As for the wrong-doers, He has prepared for them a grievous chastisement. 31